PT-2026-36518 · Unknown · Open Vehicle Monitoring System 3

Feng Ning · Published 2026-05-01 · Updated 2026-05-01 · CVE-2026-42469

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Name of the Vulnerable Software and Affected Versions Open Vehicle Monitoring System 3 (OVMS3) version 3.3.005

Description A buffer overflow occurs because the parser in canformat canswitch.cpp does not properly validate a CANswitch DLC value. This allows remote attackers to cause a denial of service or potentially execute arbitrary code by sending crafted CANswitch frames.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2026-42469

Affected Products

Open Vehicle Monitoring System 3

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-42469 · Security Note
• https://twitter.com/CVEnew/status/2050269611434623093 · Twitter Post
• https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381 · Note
• https://twitter.com/infoflowcloud/status/2050270692088631306 · Twitter Post